GONAD DEVELOPMENT
Learning objectives; By the end of this lesson, you will be able to; -Describe the development of the gonads in terms of meiosis, spermatogenesis and oogenesis. There are 2 long ridges of mesoderm (one on the left and the other on the right) at the back of the abdomen and these ridges of mesoderm are called the UROGENITAL RIDGES. Each urogenital ridge has 2 parts: 1) 1) A layer/portion much longer and lateral called the NEPHROGENIC PORTION of the urogenital ridge.Nephrogenic means that it is going to be related to the formation of the kidney structures. 2) 2) A smaller and more medial portion called the GONADAL PORTION of the urogenital ridge. This gonadal portion is the mesoderm that will cause the formation of the gonads (on the right side and also on the left side). Even though it is at the gonadal portion that the gonads are going to form, the primordial germ cells (cells that are going to...